Links sustainable energy

Renewable Energy Topsites

Calculate annual solar panel energy output

Fill in the fields with a yellow background. The fields with a white background are calculated automatically. Use the button “Calculate energy output” to start the calculation. To perform another calculation, just fill in new data in the yellow fields and click “Calculate energy output”.
Step 1: determine the maximum capacity (Watt) of your solar energy system
Number of PV-panels
Maximum capacity per panel Watt
Maximum capacity of total PV-system Watt
Step 2: determine the location in Europe where the PV-system is placed (only member states of the EU are listed)
Country
Revenues of the PV-system placed optimally kWh/year
Step 3: determine the irradiation as a consequence of the orientation and inclination of the PV-system
Orientation of the solar panels (0=South; 90=West; -90=East) degrees
Inclination of the panels (0 to 90 degrees) degrees
Irradiation factor (maximum 100%) %
kWh/year
The revenues are calculated for the given location, orientation and inclination.
For reference: the annual electricity consumption of a typical West-European household is approximaly 4.300 kWh/year, but varies for different countries.

Method of calculation

A Solar Energy system in Europe will have different revenues depending on several factors. A PV-system with a maximum capacity of 1000 Watt will result in 800 kWh in Northern European regions up until approximately 1500 kWh in parts of Southern Europe. Orientation and inclination must be optimal to gain the maximum possible revenues. Another important factor is the quality and capacity of the inverter.

The amount of energy that the sun offers differs strongly per region. Even in one country, going from east to west or from north to south, differences are created also by factors as the amount of wind: coastal areas tend to have more sunshine as clouds are blown away by prevailing seawinds.
pvgis_eu_solar_potential
In the graph you can see what you lose if you have to place the PV-panels in a less than optimal position. The smallest ellipse in the graph shows the maximum revenue (100%). The next ellipse shows a revenue of 95% and the third 90%. For an economic viable exploitation of a solar system you must be able to catch 90% of the maximum irradiation. In the graph you can see that the necessary orientation is between WSW and ESE. The inclination has to be between 7 and 65 degrees. stralingsdiagram_small.jpg

In the calculation method, no corrections have been made for circumstances as shadow caused by trees, high buildings in the vicinity, etcetera. Every obstruction of sunlight should be avoided.

No rights can be claimed regarding these calculations.

Copyright © 2009 www.sustainableenergyworld.eu